EN ISO 354:2018 is a professional technical standard that specifies the measurement procedures and requirements for sound absorption in a reverberation room. This standard, developed by the International Organization for Standardization (ISO), is widely recognized and used in various industries.
The Importance of EN ISO 354:2018
Sound absorption is crucial in many applications, such as concert halls, recording studios, conference rooms, and open office spaces. The quality of sound can greatly affect the experience of the audience or users in these environments. EN ISO 354:2018 sets the guidelines for measuring the sound absorption properties of materials, which helps in designing and creating optimal acoustical conditions.
Measurement Procedures
The standard defines the necessary equipment, procedures, and calculation methods for conducting accurate sound absorption measurements. It specifies the use of an impedance tube or reverberation room for evaluating a material's sound absorption coefficient. These experiments are carried out under controlled laboratory conditions to ensure reliable and comparable results.
EN ISO 354:2018 provides detailed instructions on the mounting and configuration of test specimens, as well as the data acquisition process. It also considers the effect of angle of incidence, temperature, and humidity on the sound absorption properties of materials.
Requirements and Classifications
In addition to measurement procedures, EN ISO 354:2018 also sets requirements for sound absorption classes based on the obtained sound absorption coefficients. Different applications may require different levels of sound absorption performance, and this standard offers a classification system to facilitate the selection of suitable materials for specific purposes.
The classes range from A to E, with Class A representing high sound absorption capability and Class E indicating low absorption. By understanding the performance requirements and classifications, designers and acoustic engineers can make informed decisions to achieve desired soundscapes.
Nina She